Signing Day Sports files registration statement for One Blockchain combination

Signing Day Sports (SGN) announced the public filing of a Registration Statement on Form S-4 with the U.S. Securities and Exchange Commission by BlockchAIn Digital Infrastructure, a newly formed Delaware corporation created for the purpose of consummating the Company’s previously announced business combination with One Blockchain. The filing follows the Company’s confidential submissions of drafts of the Registration Statement with the SEC on July 8, 2025, August 28, 2025, and September 24, 2025. As previously disclosed, on May 27, 2025, Signing Day Sports entered into a Business Combination Agreement with BlockchAIn, One Blockchain, and certain other parties, as amended on November 10, 2025. The Registration Statement provides information on the proposed business combination and listing of BlockchAIn common shares on the NYSE American under the ticker symbol “AIB.”